Radians on a Cartesian Plane

Convert the following degrees into radians. a) 30°

• π/6

• π/4

• π/3

• π/2

Convert the following degrees into radians. b) 45°

• π/4

• π/3

• π/6

• π/2

Convert the following degrees into radians. c) 60°

• π/3

• π/4

• π/6

• π/2

Convert the following degrees into radians. d) 90°

• π/2

• π/4

• π/3

• π

Using the unit circle, find the value of sinθ

• y

• x

• -y

• -x

Using the unit circle, find the value of cosθ =

• x

• 1

• -1

• 0.5

Using the unit circle, find the value of tanθ =

• y/x

• x/y

• x^2 + y^2

• 1

• -frac{sqrt{2}}{2)

• frac{sqrt{2}}{2)

• -1

• 1

• -2

• -\sqrt{3}

• -frac{2 sqrt{3}}/{3}

• -\frac{2}{\sqrt{3}}

• -sqrt{3}

• \sqrt{3}

• 0

• 1